Today's high and low tide times for Belfast, Northern Ireland, plus a 7-day tide table. Astronomical predictions from the nearest harmonic station — free and updated daily.
In Belfast, Northern Ireland, the next high tide is at 1:30 AM (4.11 m) and the next low tide is at 7:36 AM (0.58 m), based on harmonic predictions for Portpatrick.
All high and low tides for Belfast today, in local time (Europe/London). Heights are metres above chart datum.
High (H) and low (L) tide times and heights for the next seven days at Belfast.
| Date | Tides (local time · height) |
|---|---|
| Thu, Jul 16 | H 1:30 AM 4.11 mL 7:36 AM 0.58 mH 1:45 PM 4.27 mL 8:03 PM 0.27 m |
| Fri, Jul 17 | H 2:18 AM 4.09 mL 8:18 AM 0.60 mH 2:30 PM 4.24 mL 8:48 PM 0.32 m |
| Sat, Jul 18 | H 3:00 AM 4.01 mL 9:03 AM 0.69 mH 3:12 PM 4.15 mL 9:33 PM 0.44 m |
| Sun, Jul 19 | H 3:45 AM 3.88 mL 9:48 AM 0.82 mH 4:00 PM 3.99 mL 10:18 PM 0.62 m |
| Mon, Jul 20 | H 4:33 AM 3.71 mL 10:36 AM 0.98 mH 4:45 PM 3.79 mL 11:06 PM 0.84 m |
| Tue, Jul 21 | H 5:21 AM 3.52 mL 11:24 AM 1.16 mH 5:39 PM 3.57 mL 11:57 PM 1.07 m |
| Wed, Jul 22 | H 6:15 AM 3.35 mL 12:21 PM 1.33 mH 6:36 PM 3.36 m |
Predicted from Portpatrick, 58.7 km away (reliability: medium — a moderate distance — local times may differ by 10–30 minutes from the open coast).
These are astronomical tide predictions — the rise and fall driven by the moon and sun, computed by harmonic analysis. They do not include weather effects: a strong onshore wind, low barometric pressure or a storm surge can push the real water level above the predicted high, and offshore winds or high pressure can hold it below the predicted low. For navigation or any safety-critical decision, always check the official tide tables and a live water-level gauge for Belfast.
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